One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,6)(3,7,8,5)(17,18)(19,28)(20,31)(21,26)(22,27)(23,24)(25,32)(29,41)(30,44)(33,47)(34,38)(35,48)(36,43)(37,39)(40,46)(42,45)(1,3)(2,5)(4,8)(6,7)(9,10)(11,15)(12,14)(13,16)(17,19,22,23)(18,24,27,28)(20,32,34,29)(21,30,36,37)(25,31,41,38)(26,39,43,44)(33,46,35,45)(40,47,42,48)(9,11)(10,13)(12,16)(14,15)(17,20,23,32,22,34,19,29)(18,25,28,31,27,41,24,38)(21,35,37,45,36,33,30,46)(26,42,44,48,43,40,39,47)(3,8)(5,7)(10,14)(11,16)(17,21,22,36)(18,26,27,43)(19,30,23,37)(20,33,34,35)(24,39,28,44)(25,40,41,42)(29,45,32,46)(31,47,38,48)(2,6)(5,7)(10,14)(13,15)(18,27)(20,34)(21,36)(24,28)(29,32)(30,37)(40,42)(47,48) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.